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<?php
/**
* Implements Special:Lonelypaages
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup SpecialPage
*/
/**
* A special page looking for articles with no article linking to them,
* thus being lonely.
*
* @ingroup SpecialPage
*/
class LonelyPagesPage extends PageQueryPage {
function __construct( $name = 'Lonelypages' ) {
parent::__construct( $name );
}
function getPageHeader() {
return $this->msg( 'lonelypagestext' )->parseAsBlock();
}
function sortDescending() {
return false;
}
function isExpensive() {
return true;
}
function isSyndicated() {
return false;
}
function getQueryInfo() {
$tables = [ 'page', 'pagelinks', 'templatelinks' ];
$conds = [
'pl_namespace IS NULL',
'page_namespace' => MWNamespace::getContentNamespaces(),
'page_is_redirect' => 0,
'tl_namespace IS NULL'
];
$joinConds = [
'pagelinks' => [
'LEFT JOIN', [
'pl_namespace = page_namespace',
'pl_title = page_title'
]
],
'templatelinks' => [
'LEFT JOIN', [
'tl_namespace = page_namespace',
'tl_title = page_title'
]
]
];
// Allow extensions to modify the query
Hooks::run( 'LonelyPagesQuery', [ &$tables, &$conds, &$joinConds ] );
return [
'tables' => $tables,
'fields' => [
'namespace' => 'page_namespace',
'title' => 'page_title',
'value' => 'page_title'
],
'conds' => $conds,
'join_conds' => $joinConds
];
}
function getOrderFields() {
// For some crazy reason ordering by a constant
// causes a filesort in MySQL 5
if ( count( MWNamespace::getContentNamespaces() ) > 1 ) {
return [ 'page_namespace', 'page_title' ];
} else {
return [ 'page_title' ];
}
}
protected function getGroupName() {
return 'maintenance';
}
}
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